TY - GEN
T1 - Compressive sensing for feedback reduction in MIMO Broadcast Channels
AU - Qaseem, Syed T.
AU - Al-Naffouri, Tareq Y.
AU - Alghadhban, Samir
PY - 2010
Y1 - 2010
N2 - We propose a generic feedback channel model, and compressive sensing based opportunistic feedback protocol for feedback resource (channels) reduction in MIMO Broadcast Channels under the assumption that both feedback and downlink channels are noisy and undergo block Rayleigh fading. The feedback resources are shared and are opportunistically accessed by users who are strong (users above a certain fixed threshold). Strong users send same feedback information on all shared channels. They are identified by the base station via compressive sensing. The proposed protocol is shown to achieve the same sumrate throughput as that achieved by dedicated feedback schemes, but with feedback channels growing only logarithmically with number of users.
AB - We propose a generic feedback channel model, and compressive sensing based opportunistic feedback protocol for feedback resource (channels) reduction in MIMO Broadcast Channels under the assumption that both feedback and downlink channels are noisy and undergo block Rayleigh fading. The feedback resources are shared and are opportunistically accessed by users who are strong (users above a certain fixed threshold). Strong users send same feedback information on all shared channels. They are identified by the base station via compressive sensing. The proposed protocol is shown to achieve the same sumrate throughput as that achieved by dedicated feedback schemes, but with feedback channels growing only logarithmically with number of users.
UR - http://www.scopus.com/inward/record.url?scp=77954557564&partnerID=8YFLogxK
U2 - 10.1109/ICTEL.2010.5478770
DO - 10.1109/ICTEL.2010.5478770
M3 - Conference contribution
AN - SCOPUS:77954557564
SN - 9781424452477
T3 - ICT 2010: 2010 17th International Conference on Telecommunications
SP - 356
EP - 361
BT - ICT 2010
T2 - 2010 17th International Conference on Telecommunications, ICT 2010
Y2 - 4 April 2010 through 7 April 2010
ER -